Jean-François Letard, president of OliKrom presents the company he founded in 2014. This researcher at CNRS has developed and patented a type of paint and intelligent ink that change color, depending on the temperature, light or air in order to alert the industrialists of an anomaly. Its customers, more than a hundred, are international groups, including those of the CAC 40. Its flagship product developed in partnership with Eiffage Luminochrome paint is used on roads and sidewalks poorly lit to make them luminescent. The next step for OliKrom goes through an international deployment and the establishment of a distribution network. Eventually, a listing on the stock market is even considered.